I hope by now you have either checked your rpo codes, or gone out and looked at your calipers.
Hydrobbost IMO is one of the best things you can do. There are plenty of writeups. IF you tow it's a big improvement. It's the difference between vacuum pressure with air in the booster, to fluid which isn't going to compress. It will give you more of a controlled feel..
Aftermarket pads will almost always help. Many people like drilled and slotted rotors because its what they hear about.. just to make sure, those holes and slots are there to let gasses and heat escape from multiple brake pumps in short periods of time. They have less surface material to grab on, and when you apply a full pressure, they will take more of a distance to stop than blanks..
I have understood it best that drilled and slotted are best for a city style driving, where you need to keep hitting the brakes in traffic or stop lights through the city.. Blanks are best for country style driving, where you are only slowing down near your destination, and one of your biggest concerns would be an animal jumping out in front of you, where you would want to stop in the absolute fewest amount of feet possible and 10 unexpected feet could make a big differerence.